Water hardness in Szulok
16.3 °dH very hard
Tap water in Szulok is very hard: 16.3 °dH (291 mg/L · 17 gpg · 29.1 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
Szulok in Somogy county is reported at 290.9 mg/L as CaCO₃ in the 2024 NNGYK data, in the very hard range. Most Hungarian supply comes from groundwater, which picks up calcium and magnesium on its way through the rock. The report does not say which wells serve Szulok, so the geology here is described only at regional level. Scale on taps and appliances is the likely everyday result.
Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.
Water data
| Total hardness | 16.3 °dH |
|---|
How Szulok compares
- Tap water in Szulok is close to the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 1466 of 3053 in Hungary (1 = hardest); 52 % of these cities have softer water.
- In Somogy it is number 177 of 240 cities; the regional median is 19.1 °dH.
- Nearest city with clearly softer water: Istvándi, 7 km away (6.8 °dH).
- Nearest city with clearly harder water: Kisdobsza, 8 km away (21.7 °dH).
Ranking of the hardest and softest water in Hungary →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Szulok
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 16 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S2 |
| LG | H3 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Szulok water hard or soft?
It is very hard: 291 mg/L as CaCO₃ (17 gpg, 16.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Szulok safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.
How many grains per gallon is Szulok water?
17 gpg, equal to 16.3 °dH, 29.1 °fH or 291 mg/L calcium carbonate.
What dishwasher salt setting should I use in Szulok?
For 291 mg/L (16.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Szulok?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024). Method: figure published by the water supplier. NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) · Outdated figure? Tell us